1. Division of Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
2. Oral Cancer Research Theme, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
3. Department of Oral and Maxillofacial Pathology and Biology, Faculty of Dentistry, University of Lagos, Lagos, Nigeria
4. College of Medicine and Dentistry, James Cook University, Cairns, Queensland, Australia